/**
* Copyright 2012 José Martínez
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package es.udc.pfc.xmpp.handler;
import org.jboss.netty.buffer.ChannelBuffers;
import org.jboss.netty.channel.ChannelHandlerContext;
import org.jboss.netty.channel.ChannelStateEvent;
import org.jboss.netty.channel.Channels;
import org.jboss.netty.channel.MessageEvent;
import org.jboss.netty.channel.SimpleChannelHandler;
import org.jboss.netty.util.CharsetUtil;
import es.udc.pfc.xmpp.component.XMPPComponent;
import es.udc.pfc.xmpp.stanza.IQ;
import es.udc.pfc.xmpp.stanza.Message;
import es.udc.pfc.xmpp.stanza.Presence;
import es.udc.pfc.xmpp.stanza.Stanza;
/**
* Handles XMPP Stanzas.
*/
public class XMPPStreamHandler extends SimpleChannelHandler {
private final XMPPComponent callback;
public XMPPStreamHandler(XMPPComponent callback) {
this.callback = callback;
}
@Override
public void messageReceived(ChannelHandlerContext ctx, MessageEvent e) throws Exception {
if (!(e.getMessage() instanceof Stanza)) {
ctx.sendUpstream(e);
return;
}
final Stanza stanza = (Stanza) e.getMessage();
if (stanza instanceof Message) {
callback.receivedMessage((Message) stanza);
} else if (stanza instanceof Presence) {
callback.receivedPresence((Presence) stanza);
} else if (stanza instanceof IQ) {
callback.receivedIQ((IQ) stanza);
}
}
@Override
public void writeRequested(ChannelHandlerContext ctx, MessageEvent e) throws Exception {
if (!(e.getMessage() instanceof Stanza)) {
ctx.sendDownstream(e);
return;
}
Channels.write(ctx, e.getFuture(), ChannelBuffers.copiedBuffer(e.getMessage().toString(), CharsetUtil.UTF_8));
}
public void loggedIn() {
callback.connected();
}
@Override
public void disconnectRequested(ChannelHandlerContext ctx, ChannelStateEvent e) throws Exception {
callback.willDisconnect();
ctx.sendDownstream(e);
}
@Override
public void channelDisconnected(ChannelHandlerContext ctx, ChannelStateEvent e) throws Exception {
callback.disconnected();
ctx.sendUpstream(e);
}
}